Corrosion damage in frozen 3.5 wt.% NaCl solution

Abstract

Zn and frozen 3.5 wt.% NaCl solution were used to simulate galvanized steel structures exposed to the seawater in the Polar Regions. The conductivity of the frozen salt solution and the corrosion of the Zn were characterized by electrochemical impedance spectroscopy, galvanic current measurement, and surface analyses. The results indicated that the completely frozen 3.5 wt.% NaCl solution was still conductive and corrosive, and the galvanic effect between different metals could not be ignored. The corrosion damage risk of metallic structures, particularly in the joint regions, can be high under freezing marine conditions in the Polar Regions.

Experimental study of corrosion behavior on 7005 aluminum alloy under acidic 3.5 wt% NaCl environment

“…Several approaches have been used to evaluate the effect of corrosion damage on the mechanical properties, such as 3.5 wt% NaCl solution, [ 8 ] exfoliation corrosion test, [ 9 ] and salt spray corrosion test. [ 10 ] Accelerated laboratory corrosion tests can be exploited to simulate specific types of corrosion in outdoors environments.…”

Electrochemical Stability and Biofouling Behavior of Differently Polarized Ti Surfaces in Simulated and Natural Seawater

“…Maritime engineering is playing a more and more important role in the growing worldwide economy. Corrosion and biofouling are two of the most challenging problems with marine structures (Ref [28][29][30][31]. Ti as a corrosion-resistant material will find more and more applications in maritime engineering.…”